#!/usr/bin/env node

const http=require('http'),
      fs=require('fs'),
      qs=require('querystring');

let items=[];

function genPage(){
  let html=fs.readFileSync('./template.html').toString('utf8');
  console.log(html);
  let dom=items.map(i=>'<li>'+i+'</li>').join('\n');
  console.log(dom);
  html=html.replace('%',dom);
  return html;
}

http.createServer((req,res)=>{
  if(req.url!=='/'){
    res.statusCode=404;
    res.setHeader('Content-Type','text/html');
    res.end('<h1>Not Found!</h1>');
    return;
  }
  let data='';
  req.on('data',chunck=>data+=chunck);
  req.on('end',()=>{
    let item=qs.parse(data).item;
    if(item!==''&&typeof item!=='undefined'){
      items.push(item);
    }
    res.writeHead(200,{
      'Content-Type':'text/html',
      'Content-Length':Buffer.byteLength(genPage())
    });
    res.end(genPage());
  });
}).listen(8080);
